Serving Black Mountain, NC and surrounding areas
Approved
In business since 2011
Free estimates
Emergency services offered
"All About Heat & Air is a professional, dependable repair service. If you're assigned repair tech Kyle, you will be blessed. He is a consummate professional. -- David Dietz"
+75
Serving Black Mountain, NC and surrounding areas
Approved
In business since 1990
Free estimates
Emergency services offered
"Excellent service. Tech called when he was enroute. Upon arrival he explained what he was going to do & that if he found any issues/problems he would talk to me before doing anything. He did the servicing thoroughly in about an hour. He made one recommendation for a change to the air return but wasn't pushy about it. He said it was just an idea to make changing the filter easier. He also brought up another recommended system change/addition and we discussed future service options. Overall it was very good service. I would use them again."
Serving Black Mountain, NC and surrounding areas
Approved
Emergency services offered
Warranties offered
Credit card accepted
"Installed in less than one day and went very smoothly"
Serving Black Mountain, NC and surrounding areas
Approved
In business since 2002
Credit card accepted
Customers say: True professional
"Tim is the best service technician! He was out today today for a maintenance and service call. He is very experienced and clearly explained what was needed and to recap at the end of the visit! I first started working Sheer Comfort in 2023 when they installed a new AC & Gas furnace for my home. I obtained 5 quotes from highly rated companies before deciding which company to engage. I worked with Travis Shearer (owner) on deciding which options were best for my home and I was impressed with his knowledge, fair pricing and ease to work with. The project was well supervised by Carl and installed by David & Eli......they were all great to work with. Tonya in the office was excellent in keeping me posted on timelines and managing the coordination for permitting and coordinating with the 3 sub-contractors needed for running gas lines and electrical to connect my new furnace and for a plumber to make changes to my water heater from my old gas forced air system. Sheer Comfort is the best!"
Serving Black Mountain, NC and surrounding areas
Approved
In business since 2007
Free estimates
Emergency services offered
"Great techs though repairs did not happened when promised. Product arrival could be a part. Repairmen seemed very confident and knowledgeable."
Serving Black Mountain, NC and surrounding areas
Approved
In business since 2025
Free estimates
Credit card accepted
"Had a great experience with Cool Cat . The technician was professional, on time, and quickly diagnosed the issue. They explained everything clearly and got the unit running like new again. Pricing was fair and the whole process was smooth from start to finish. Highly recommend for anyone needing reliable HVAC service!"
+2
Serving Black Mountain, NC and surrounding areas
Approved
In business since 1977
Free estimates
Emergency services offered
"Very prompt, thorough, and professional service, just what you need when you have a HVAC problem. Highly recommended."
+8
Serving Black Mountain, NC and surrounding areas
Approved
In business since 2001
Free estimates
Emergency services offered
At Blue Planet Plumbing we have been serving our Western North Carolina communities and surrounding areas for over 12 years offering quality workmanship while excelling in customer service. \n
+4
Serving Black Mountain, NC and surrounding areas
Approved
Super Service Award Winner
In business since 2019
Free estimates
Customers say: True professional
"Excellent work all around; we recommend!"
+33
Serving Black Mountain, NC and surrounding areas
Approved (Corporate)
In business since 2012
Free estimates
Emergency services offered
"Great workers and great service"
Most professional HVAC technicians require two to three hours to complete an expansion valve replacement. The timeframe depends on your unit's accessibility and whether additional repairs are needed. The process involves recovering refrigerant, removing the old valve, installing the new component, and recharging the system. Scheduling during less busy seasons may result in more convenient appointment times.
Operating your air conditioner with a malfunctioning expansion valve isn't advisable. Continuing to run the system could potentially damage other components, particularly your compressor, which is significantly more expensive to replace. If you notice performance issues like inconsistent cooling or unusual noises, it's best to have your system inspected before continuing regular use.
Expansion valves don't have a standard replacement schedule, as their longevity depends on system usage, maintenance frequency, and environmental factors. Regular professional maintenance helps identify potential valve issues before they cause system failure. Having your HVAC system serviced annually allows technicians to monitor component condition and recommend preventative replacements when necessary.
Refrigerant leaks require prompt professional attention. If your expansion valve is leaking, you'll likely notice reduced cooling performance and possibly hear hissing sounds near the unit. Addressing leaks quickly prevents further system inefficiency and avoids the environmental impact of released refrigerant. Your HVAC technician will need to repair the leak and recharge the system with the proper refrigerant type and amount.
Because many AC issues present similar symptoms, professional diagnosis is recommended. Problems like inadequate cooling, inconsistent temperatures, or strange noises could indicate expansion valve issues, but might also stem from refrigerant leaks, electrical problems, or airflow restrictions. A qualified HVAC technician has the tools and expertise to accurately identify the root cause and recommend appropriate repairs.
From average costs to expert advice, get all the answers you need to get your job done.
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